Based on their profile, new clients who sign up with inerTRAIN will be directed to trainers based on our trainerMATCHâ„¢ algorithm. In the end, however, it is up to the clients to decide who they want their trainer to be. As a trainer, you can take charge of the number of inerTRAIN clients you have by referring friends, family, and anyone who might be interested in being trained by you to increase your client base.